Impacts of climate change on cotton production and advancements in genomic approaches for stress resilience enhancement

Table 1 Characteristics of various HSP groups in plants

Sub-families		Representative members	Intracellular localization	Major role	References
HSP100	Class 1	ClpB, ClpA/C, ClpD	Cytosol, mitochondria, chloroplast	Unfolding and disaggregation of proteins	Zietkiewicz et al. 2004
HSP100	Class 2	ClpM, ClpN, ClpX, ClpY	Cytosol, mitochondria, chloroplast	Unfolding and disaggregation of proteins	Winkler et al. 2012
HSP90		Hsp90 - 1	Cytosol	Facilitates in buffering genetic variation and maturation of signaling molecule	Krishna et al. 2001
		Hsp90 - 5	Chloroplast		Krishna et al. 2001
		HSP90 - 6	Mitochondria		Kadota et al. 2012
		HSP90 - 7	Endoplasmic reticulum		Sable et al. 2018
HSP70	Dnak	Hsp/Hsc70	Cytosol	Protein import, signal transduction, transcriptional activation, assist refolding and prevent aggregation of protein	Sung et al. 2001
		Hsp70	Chloroplast, mitochondria		Scarpeci et al. 2008
		Bip1	Endoplasmic reticulum		Li et al. 2014
HSP110/SSE		Hsp91	Cytosol		Rehman et al. 2020
HSP60	Group 1	Cnp602	Chloroplast, mitochondria	Folding of proteins	Boston et al. 1996
HSP60	Group 2	CCT3	Cytosol	Folding of proteins	Hartl et al. 2011
sHSP	I	Hsp17.6	Cytosol	Stabilization of non-native protein and prevent aggregation	Lee et al. 2000
	II	Hsp17.9	Cytosol
	III	Hsp21, Hsp26.25	Chloroplast
	IV	Hsp22	Endoplasmic reticulum		Haslbeck et al. 2015
	V	Hsp235	Mitochondria
	VI	Hsp22.3	Membrane

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